| Author | Message | ||
     Peter Wimmer Rating: |
I've started a project to create a list of 3D-capable projectors. All tests were done on a Toshiba M30 notebook with buildin Geforce FX 5200 Go graphics card, NVIDIA's consumer stereo driver and Stereoscopic Player. Here are the first results: Infocus DepthQ projektor (800 x 600, DLP, 1600 ANSI Lumen): 60 Hz: yes 75 Hz: yes 85 Hz: yes 100 Hz: yes 120 Hz: yes Benq PB8120 (800 x 600, DLP, 1800 ANSI Lumen): no Benq PB8140 (800 x 600, DLP, 2000 ANSI Lumen): no Toshiba TDP-S20 (800 x 600, DLP, 1400 ANSI Lumen): 60 Hz: yes 75 Hz: yes (color problems) 85 Hz: yes (color problems) 100 Hz: no 120 Hz: no At 75 and 85 Hz, the image of one eye looks geenish, the other one blueish. This is not caused by the shutterglasses because it is also noticeable when not wearing glasses. Toshiba TDP-MT500 (1024 x 768, DLP, 700 ANSI Lumen): 60 Hz: yes > 60 Hz: no Panasonic PT-AE 700 E (1280 x 720, LCD, 1000 ANSI Lumen): 60 Hz: yes > 60 Hz: no Sim2 Domino 18H (1024 x 576, DLP): no If you have tested other projectors, please tell me. I'll create a website and summerize the results so that other people don't have to test all projectors again... | ||
| M.H. Rating: N/A |
I had already mentioned this: InFocus LP 650 (1024x768 2500 ANSI): 60 Hz: yes no other mode works in stereo ... | ||
| Peter Wimmer Rating: N/A |
Another one (thanks to Werner Bloos for testing): Optoma EP739 (1024 x 768, DLP, 2300 ANSI Lumen): 60 Hz: yes 75 Hz: yes (color problems) 85 Hz: yes (color problems) 100 Hz: no 120 Hz: no | ||
| Anonymous Rating: N/A |
Tried pageflipping with the Infocus X1 at 1024x768/60Hz. Cropped pic but works very well with amazingly no ghosting and slightly noticable flicker. However, I'm using a cheap Nvidia card and stereo occasionally drops out and the video is sluggish. Time for a new card. | ||
| Anonymous Rating: N/A |
Infocus X1a, DLP, 800 x 600, 1100 ANSI Lumen 60 Hz: Yes 75 Hz: Yes (slight color problems) 85 Hz: Yes (slight color problems) Color problems are not a major issue (to me). I noticed the color problems (one eye perceives a slightly different color than the other) can be swapped when tinkering with advanced timing options. Geert | ||
| ChrisC007 Rating: N/A |
Just to clear something up on this thread, I have just purchased an Infocus X1a projector. I have had it working in pageflipped stereo at 60Hz, 75Hz and 85Hz. As mentioned above, at 75 & 85Hz there is a slight colour distortion. However, if this is putting some people of buying this projector, I would just like to clarify that this colour distortion is VERY SLIGHT and is far less distracting than the flickering at 60Hz. Flickering at 85Hz is ALMOST undetectable, unless you are viewing in a brightly lit room, which is far from ideal for viewing 3D anyway! In summary, the X1a is ideal for viewing large screen 3D on a budget. If, however, you are a perfectionist, then save up and get the DepthQ. | ||
| Jorn Are Rating: N/A |
Anyone tried the benq pe7700? It looks like a good candidate... | ||
| Tim Rating: N/A |
I just purchased an Infocus LP290. It runs good at 60/120Mhz 800x600. I notice a little flicker but only if I try to see it. I had to down the 3D image displacement to 5% because of the large screen. My only problem is it seems to display a flat image about every 15 frames. I don't know if the progressive/deinterlace video feature is doing this and/or if I just need to continuously tinker with the stereo modes and refresh rates. Anyone with an Nvidia card and Infocus projector I'd be interested in knowing every setting you are using for both the projector/monitor/card/timing to make it work properly. I'll post my settings if I can ever get it right. After at about 2 hours of trial with error and $650 in the hole I'm very frustrated. | ||
| Who Reads This? Rating: N/A |
Hello, I guess I'm the only DIY 3D projector person left, everyone else decided to waste their money on the DepthQ. I just wanted to say most any of the cheap projectors can create stereo 3D as long as you know the refresh rate of the projector and set your monitor to the same or double that. Even the cheapest projectors have a 60mhz refresh. Setting the monitor refresh to 120mhz would definately eliminate any flicker and still sync with with the glasses, so with a $400 projector from eBay and a $30 stereo card w/ glasses you have it all. I don't know why everyone insists on the X1a, the refresh rates are slow and lumens low, the only benefit is the life hours that is if you then half your already low lumens, then the shutter glasses will only worsen that problem. You can get other infocus models cheaper that have refresh rates up to 100mhz not that it matters, 1700 lumens, or other brands at 2200, so I guess really what is the point of making a list and how is it that you make some models not work unless the progessive mode is messing it up and why buy an X1a then say it is a great deal and what is the point of a forum nobody reads ever? | ||
| M.H. Rating: N/A |
Who Read This: All projector declaring higher than 60 Hz refresh rate usualy downscales higer one to 60 Hz (with some expception working partialy to 85 Hz but producing color desync) = no stereo. None of the cheap projector can from pricipal reasons work at 120 Hz (I was participation in DepthQ development, I know what I speak about). | ||
| Who Reads This? Rating: N/A |
I never said the projector would sync at 120Hz just the glasses, 2x's the speed catches the same frames as 1x, 4x, 8x etc. We DIY people do it with the cheap projectors all the time to prevent the headaches, just check the other 3D forums out there, yeah the projector downscales to 60hz but that's not what you see blinking in the 1st place, it's the glasses cause each lens would blink at 30 if you set the timing to 60, common sense tells you that, and for most humans 30 is to slow for comfort but only because both eyes aren't seeing the same image at the same time creating what seems to be 15hz on the eyes (ouch!) although any tech would claim differently including myself because it actually is still at 30hz. Downscales don't mess anything up as long as the monitor setting is an exact multiple of the refresh rate on the projector, that is true at least until stereo projector companies smart up and make the refresh rate random rather than static, then people like the developers of DepthQ would get a few more sales from people like me who would have no choice or companies could just pick a random unpublished refresh for each screen size making it virtually impossible to guess since nVidia's drivers let you pick the refresh to a 100th of a degree. Even if all of us cheapos got together we'd never be able to produce the correct setting for every projector out there, so don't worry, you'll still get your money selling toys to the rich, meanwhile the handful of us who know better will continue playing our games in stereo until it becomes affordable for everyone else to join us, I'm not saying DepthQ isn't an excellent product, because it works great, a lot better than my junk (literally) but it's just too darn expensive for me and my buds right now. But there is something I don't exactly know that you can explain. How it is that there are color problems on some projectors unless one wheel spins at a different speed than the other, that's not right in the 1st place, it's a projector problem, not a compatibility problem, 60hz should be 60hz not 60-60-60-75, that's false advertising, I guess the reason most projector companies have stopped publishing exact rates already, more money to ya, I'm happy though, good luck DIY's and to you too M.H., thanks for the response :-) | ||
| clyde Rating: N/A |
interesting... what I cant understand, is how you can have 120hz on yr monitor and 60 hz on yr projector at the same time? Or - what you are saying is that the projector should be capable enough to "accept" the 120hz signal even tho it scales it down internally to 60? even so I'm sceptical about the flicker being reduced by this method, but I havent tried yet. _Regards | ||
| Peter Wimmer Rating: N/A |
"Who reads this", I cannot follow your explanations. Whenever a projector downscales to 60 Hz, you get 30 Hz plickering per eye. There is no workaround. > any of the cheap projectors can create stereo 3D Wrong. See first posting for projectors which do not work at all. (Of course you might be able to use them with passive systems, but this discussion is about pageflipped 3D). | ||
| Peter Wimmer Rating: N/A |
Here is a compatibility list of many more projectors: http://www.razor3d.de/positivliste.asp | ||
| M.H. Rating: N/A |
My opinion abou the razor3d table: Most of the listed projector will work somehow only at 60 Hz. I do not belive the table is based on true testing of the projectors for stereoscopic usage - it is probably based only on the manufacturer informations = higer frequency will not work or they will be out of phase. P.S. InFocus DpethQ work up to 120 Hz not only up to 100 Hz as listed in the table (and it works on all lower frequences)... | ||
| Unclebob Rating: N/A |
Peter great find. But I see the Infocus X1 there which I have. 3D is great only when fed at 1024 in native mode, this however gives a cropped image as the projector can only do 800*600. Not that brillient. Every other resolution and frequency there is significant ghosting. Awaiting some news on the X3 as that DLP chip is 1024 and some reports have been favourable. So unfortunately that list may not be as accurate as it could be.. Sorry to bring a downer on it but if one that is listed doesn't work well then what of the others??? Hate to see someone shell out the cash and end up dissappointed. All the best Unclebob | ||
| PiXeL Rating: N/A |
It's been a while since i posted after burning up the bulb on my x2. Well, I broke down and bought the x3 today since circuit city is selling it for $874 after rebates (Great Deal!). 3D performance wise, it appears to function just like the x2, which is great! Just finished playing a little painkiller and it is stunning at 1024x768. 75 hz refresh works with slight color issues but it isn't a big deal with painkiller since it is such a dark game anyway. More to come on other games once i have had a chance to play a little more. Great to be able to play in stereo again on the bigscreen! PiXeL | ||
| Gargol Rating: N/A |
Hey thanks for the feedback! I am looking for the X3 also. I have an x1 right now but i want more resolution and correct 3D. Can you get it to work at 85hz? And how is the projector overall for films, it is better than the x2 or x1? Thanks for taking time | ||
| Peter Wimmer Rating: N/A |
This was posted by "Hornet" on another thread, which I copied here so that this thread becomes a comprehensive list of test results: *** Yesterday I tested projector Benq PB 6240 XGA 1024x768 2700ANSI with shutterglasses e-dimensional and stereo is wery good to 84 Hz! Flicker is minimally, is 1 frame delay (L/R reversation) and L/R color difference - in stereo this is no visible. The picture is great and with wery good contrast. No ghosting! This is for my the cheapest XGA stereo solution. In 1 week i will buy this projector, the tested projector was from my friend - and friend and I were totally shocked from superb stereo. *** | ||
| Alexander Oest Rating: N/A |
I've bought an LG BX220. It works with pageflipping between 60 and 85 Hz. In 85 Hz, there is a slight blue tint to the colour of one of the eyes. ...it could be a nice feature if nVidia's stereo driver could allow colour tweaking for separate eyes - then you could get rid of the blue tint. /Alex | ||
| PiXeL Rating: N/A |
x3 works well at 85hz with small color change in each eye. the jump in resolution is very noticeable and anti aliasing looks much better. painkiller is still my favorite game. PiXeL | ||
| Jorn Are Rating: N/A |
benq mp610 is awesome at 85Hz, and I dare you to find a cheaper better performing unit. Happy happy :D | ||
| Jorn Are Rating: N/A |
Too happy getting a new projector I guess I was a bit too quick posting about it. Trying to play I have noticed it does have a one frame delay (how do I get rid of this?), and also the green in the picture is gone for some reason when I insert my edimensional dongle. Can't see anything visually wrong with it, and It does work on my other CRT monitors.  Oh well, everything can't be so perfect after all. I can live with the missing green if I can figure out how to swap the left/right. | ||
| Hornet Rating: N/A |
Hi, the simplest way for reverse is reverse glasses usage (up is down), simple and easy. The other way is "reverser" (1x 3,5mm jack female and 1x 3,5mm jack male and 5cm of 3 wires cable with the change of 2 no ground wires - this is my future plan). | ||
| Peter Wimmer Rating: N/A |
If your 3D application doesn't allow to swap left/right you could solder an adapter which exchanges left and right signals. | ||
| Hornet Rating: N/A |
Hi, today I tested Benq PE 7700 (DLP,6 segm.wheel,5x wheel speed). Interesting this supermachine had no normal VGA input - is possible VGA signal usage only per adapter (R,G,B,W signal). No 75,80 Hz, absolutly no synchronisation and no stereo. I had only 1 hour for test, i have changed res. and refresh. No succes. Possible good Benq is new MP 720, only zoom is lower vs PB 6240. I think my definitive choice is 6240. (Good stereo, and price). | ||
| Hornet Rating: N/A |
Hi, Benq PB 6240 news:yesterday is my new projector arrived. Max refresh:real 86Hz stereo in 1024x768 ! No ghosting, No flicker, with e-dimensional e-glasses, 1 frame delay is no problem (change of L/R vires from glasses by one switch). Only little, little color L/R difference, absolutly no problem in stereo. Picture is absolutly sharp and 2700 ANSI is sufficient for 3d stereo 3m diagonal on simple white wall with reserve of lumens. Great Benq. The projector is 4 segment wheel, 2x speed, is 2005 model,the price is very good. | ||
| pheggie Rating: N/A |
Peter, can't change left right wires with H3D dongle for H3D wireless glasses as left and right is sent down one wire as serial data. It has 3 wires to the infrared sender. +5V, Ground, Left+Right serial data as the 3 wires. Is their a solution? | ||
| Hornet Rating: N/A |
I thing yes, I hope the L/R change result is the change of L/R open/close status of LCD panels of glasses. The second possibility is the use of glasses with changed orientation (down side is upside), no so aesthetic, but functional. The picture with PB 6240 is great! (I not a benq dealer :-) | ||
| Peter Wimmer Rating: N/A |
> Peter, can't change left right wires with > H3D dongle. Is their a solution? To watch videos, yes. Stereoscopic Player can toggle left/right (View->Swap Left/Right, hotkey F7). My H3D controller seems to output a VESA Mini-DIN 3 compatible signal on the IR port, because I've once connected professional wired glasses and they worked. VESA Mini-DIN 3 consists of a ground pin, a 5V power supply pin a TTL-level data pin. Passing the data signal thru a TTL inverter will reverse left/right. | ||
| pheggie Rating: N/A |
Thanks Peter that seems a pretty easy thing to implement for H3D glasses right/left reversal One wire is red presume this is +5V one wire is black assume this is ground the last wire is white I presume this is the one to invert. Can check with a logic probe. If I use a low level schottky ( LS )TTL inverter would that mean I can use the +5V line instead of an external power supply? What's your opinion. Would that inverter have enough power to drive the pair of infrared LED's of the sender. | ||
| pheggie Rating: N/A |
Hi Peter, the H3D manufacturers say no the inverter won't work. The way the glasses knows which eye is active is by the value of the data stream. For example a 0x23 means right eye and 0x33 means left. | ||
| Hornet Rating: N/A |
Hi, my new experiment with Benq PB 6240: with adapter wide angle lens (Vanguard wide angle lens adaptor, factor x 0,79) (this is wide angle lens for digital cameras and videocameras) it is possible the 20% magnification of picture from the same distance. From 3,7 m distance cca 4m diagonale picture. Great for home cinema and 3D. The price in Slowakia is cca 70EUR. The optics is good. | ||
| Carsten Meyer Rating: N/A |
Have a nice day, I`m the brain from the 3D VGA Progressive Box (this Box works with one DLP-Projektor without PC, you need only a Field Sequential 3D DVD) The positivlist you can found by razor is correct because my Box works between 60 and 100 Hz. More information about Projectors and my Hardware under http://www.3D-konverter.de or http://www.3d-konverter.de/progliste/BeamerTests.xls Bye from cold germany Carsten (cybermeyer) | ||
| Hornet Rating: N/A |
Hi, after aprox. 50 hours 3d stereo pageflipping and (litle time) movie projection with Benq PB 6240 I very happy. Stabile 86 Hz in 1024x768, no ghosting, no problems. I absolutly satisfied. The price/benefit ratio is very good. With wide angle lens the picture is great from short distance. For movies is wery good black color enhancement= usage of neutral filter (or 5-6mm tinted glassrests from glass market). | ||
| tiggerhase Rating: N/A |
@ John Are I'd like to buy the MP 610 also if it works with shutterglasses. Can you tell a little bit more about your experiences with this beamer and 3D? Thanks! | ||
| Hornet Rating: N/A |
Hi, see please this: http://www.stereo3d.com/discus/messages/3177/3642.html?1135086714 The MP 610 i think is no ideal, the MP 720 i think were better (better res.), the MP projectors are modernised PB with 5 color 3x speed color wheel. The PB proj are 4 color 2x speed. This is the difference. I personally were recomneded PB 6240 - good bright, good res., and wery good price (is older model). For home cinema and so is good, only had no DVI input. 3D is absolutly problemless at 86Hz. | ||
| pheggie Rating: N/A |
Using ACER PD113P get great pageflipped 3d up to 85Hz. Managed to get it sync doubled to use with old version of 3dplus v2 by using Powerstrip and set custom resolution profile for PAL 50p 720x576 at 50Hz but color was weak at this resolution. reverse stereo doesn't seem to matter with 3dplus v2 | ||
| marcus Rating: N/A |
A question to hornet I am about to purchase the infocus x3 but from what you are saying I am tempted by the benq pb6240 can you tell me have you tested the x3 as a comparison ? Thanks Mark | ||
| Hornet Rating: N/A |
Answer for marcus: Hi, I have no tested X3,technical parameters are very similar to PB 6240,(res,freq.range of vert.sync, DLP chip,color segment wheel speed,optics ) only light output ANSI is lower (1700 X3 v.s. 2700 ANSI PB 6240). For active stereo is good the light output reserve - the shutterglasses reduces light input in the eye. I not a Benq dealer, only I have Benq in my home and I very satisfied (i have before my purchase the possibility of test of benq). Not so good is lamp life time 2000/3000 h Benq, and lamp garancy 500h or 6 months, lamps are rel.expensive. Benq is wery good for homemade montage of wide angle adapter lens (the picture is with this 20% greather from the same distance). Purchase of projector for 3d is complicated process. | ||
| David Woodhead Rating: N/A |
Hi all, Now as you can tell from this post i'm not the most technically minded individual out there. LOL However i did buy an infocus 4805 a couple of months back, and somehow managed to set it up. LOL Wow, i never thought i would ever see anything like it in my living room!!Amazing! Anyway, back to the 3d stuff LOL I was watching one of those colour code 3d films on it and i must say i was pretty impressed with the 3d effect. Now after finding this site through numerous links and having a look at that list Pete posted way back in October am i right in thinking that LCD shutter glasses like the edimensional thingies will actually work with it? You know just the glasses, control box, dvd player and projector? Or even using a PC for that matter? Has anyone tried the infocus 4805? You know guys i might just give it a go and see what happens. I'll still be able to use them with my good old TV, but my god, if it actually works i'll be lost for words!!!!!!! Dave | ||
| Jesper Rating: N/A |
Well, color code films are one thing pageflipping is another. But if you try it let us know how it works. | ||
| pheggie Rating: N/A |
Isn't the Infocus 4805 a DVI only not VGA so how do you get it to work with a VGA 3d dongle to it? Or do you fit it to a VGA card which has one VGA out and one DVI output? | ||
| ajay501 Rating: N/A |
hi pheggie, you may be able to use a VGA to DVI adapter. I found one at tigerdirect.com for 7.99 $U.S. Here's another projector 3D test: Optoma EZ 745. (advertised lumen output - 2300) This projector is not listed on the Optoma website, must be a special build for tigerdirect.com. Works at 85 Hz in 3D with eDimensional shutterglasses. Noticed no color distortion. Advertised refresh rate 100Hz - but found that this is not true! Only goes up to 85Hz, but found this to produce no noticable flicker. - cheers | ||
| jass Rating: N/A |
http://www.elec-micro.com | ||
| Andy W. Rating: N/A |
I have a ScreenPlay 4805 and some old Eye3D shutter glasses. I haven't used the glasses in a long time because I don't have any CRT monitors any more. I tried them on my LCD monitor, and of course it didn't work due to polarization issues. Anyway, I have a Shuttle XPC, so I carried it out to the living room and plugged it into the pj, along with the glasses. By the way, the pj comes with a VGA to DVI cable. Before hooking it up I made sure to get the stereo 3D driver from NVidia, but I had to "downgrade" my Forceware drivers to 78.01. Well, it worked! It only goes up to 75Hz (37.5 per eye), but the 3D effect is quite good. From about 15 feet away, it looked like the NVidia logo was floating right in the center of my living room! Of course, this is not a perfect solution. Eventual headache or fatigue is likely with the flicker. And as expected, brightness is reduced considerably. Make sure you're not running in "low power" mode. | ||
| Andy W. Rating: N/A |
Oh, I forgot to mention. The thing I thought would be a real problem before I tried it was ghosting. I didn't see one bit! | ||
| David Woodhead Rating: N/A |
Thats great news! | ||
| David Woodhead Rating: N/A |
Just felt the need to shout this out to the world. Those shutter glasses that are ment for only CRT work fine with the screenplay 4805. If not better than with my TV. lol AMAZING!! | ||
| Steve Johnson (Cogy) New member Username: Cogy Post Number: 1 Registered: 8-2006 Rating: N/A |
I have a Infocus 5700 I have tried to use it for page flipped 3D images using a NVIDIA G Force VGA card in the computer and E-Diamensional shutter glasses. I set the computer for 85 refresh rate (the 5700 rated at 85) and tested first on my monitor, all ok, but the Infocas shows only one image, then after a few seconds the second image moves up the screen very slowly to cover the first one. Does anyone know the answer, perhaps there is something I have to set up in the projector menu? or maybe the 5700 will not work with page flipped. Any info will be very welcome. | ||
| Peter Žiak (Hornet) Junior Member Username: Hornet Post Number: 40 Registered: 4-2006 Rating: N/A |
Next 3D compatible PJ: benq Mp 720p (85Hz), the same little no problematic L/R difference as benq PB 6240. 2500ANSI, 3000/4000 hours Philips lamp. With E-D activator software from e-dimensional no L/R reverser for glasses needed. | ||
| Peter Wimmer (Peter_wimmer) New member Username: Peter_wimmer Post Number: 10 Registered: 5-2006 Rating: N/A |
Another resource for compatible projectors: http://www.cmst.curtin.edu.au/publicat/2006-35.pdf | ||
| Andrew Woods (Andrew_woods) New member Username: Andrew_woods Post Number: 3 Registered: 4-2006 Rating: |
The projectors that we found would work for 85Hz stereo are: Projector Make/Model (Resolution): Acer PD322 (1024x768) Acer PD523 (1024x768) Acer PH110 (854x480) BenQ MP610 (800x600) BenQ PB6240 (1024x768) Boxlight Raven (800x600) Casio XJ-360 (1024x768) NEC LT35 (1024x768) Optoma EP719 (1024x768) Optoma EP739 (1024x768) Plus U4-237 (1024x768) Plus U5 (1024x768) Sharp XR-10X (1024x768) Toshiba TDP-S8 (800x600) Yamaha DPX-530 (1024x576) Note that we have also identified the reason for the slight colour difference between the two eyes at rates 63Hz and above. See the paper for more info: http://www.cmst.curtin.edu.au/publicat/2006-35.pdf | ||
| James E. Nelson (James) New member Username: James Post Number: 3 Registered: 5-2006 Rating: N/A |
Your paper mentions developing a "custom LCS glasses driver" to compensate for the time offset of the different DLP projectors tested. Does this mean that "off the shelf" shutter glasses hardware and software will not work well with these projectors? | ||
| Andrew Woods (Andrew_woods) New member Username: Andrew_woods Post Number: 4 Registered: 4-2006 Rating: N/A |
Our original purpose of developing the "custom LCS glasses driver" was to allow us to do a wide range of things that you can't do with a regular LCS glasses driver. Firstly we can delay the switching on of the glasses by an adjustable amount, and secondly we can adjust the duty cycle of the glasses (i.e. adjust the switch off time). We can also trigger the glasses from a range of different video types. During the testing of most of the DLP projectors we measured the time offset between the vertical sync pulse and the time at which the projector output light for that field/frame. We did this since it is a potential source for ghosting/crosstalk. We were rewarded for checking this parameter because we found a huge variation between projectors. Of the 85Hz stereo capable projectors, the range was only 0.3ms to 0.96ms (milli-seconds). This may sound small but one frame at 85Hz is only 11.8ms long. 0.96ms therefore corresponds to ~8% of one 85Hz frame. So, if your glasses switch at the 0ms point (the trailing edge of the vertical sync pulse) you could be experiencing ~8% ghosting/crosstalk if you had a projector with a 0.96ms time offset. But I don't know the time offset of your glasses. And we didn't test a wide range of LCS glasses drivers for this property. Of the projectors that we tested that were 60Hz stereo capable, the situation was sometimes MUCH WORSE. We found at least one projector that had a time offset of 8.3ms. This corresponds to ~50% of one 60Hz frame period (16.7ms). This is HUGE! and would completely destroy the stereo effect unless that switching of the glasses was delayed by a corresponding amount. So, in summary, the results of this project DO NOT mean that "off the shelf shutter glasses will not work well with these projectors". It all comes down to what is the time offset of the glasses driver and what is the time offest of the projector that you're using. If the two time offsets are pretty much the same, ghosting/crosstalk won't be caused by bad timing. But if there is a significant different between the two time offsets, ghosting/crosstalk would be present (unnecessarily). Cheers, Andrew. | ||
| Peter Žiak (Hornet) Member Username: Hornet Post Number: 52 Registered: 4-2006 Rating: N/A |
Use one from this projectors Benq PB 6240 and with cheap shutterglasses e-dimensional wired 3D pageflipped at 85 Hz is all OK (NVidia 3D stereodrivers and ed-activator software.Practically no ghosting. I thing cheap and effective combination. Th new Benq MP 720 is tested is OK, | ||
| Chris (Egoexpress) New member Username: Egoexpress Post Number: 1 Registered: 10-2006 Rating: N/A |
Hi, someone knows if the benq sl705x could do the job? Greetings Chris (Message edited by egoexpress on October 22, 2006) | ||
| yitzhak weissman (Itsikw) New member Username: Itsikw Post Number: 2 Registered: 9-2006 Rating: N/A |
Andrew, thank you very much for the article! This is an important contribution to the 3D community. Let me add the following to the projector list: Make: Optoma Model: EP716R Resolution: SVGA 85Hz operation: yes Sync delay: 0.5msec | ||
| david blankenship (David6768) New member Username: David6768 Post Number: 6 Registered: 4-2006 Rating: N/A |
I just wanted to add the following to the projector list: Make: NEC Model: LT180 Resolution: 1024 X 768 85Hz operation: yes Sync delay: 1 frame delay stereo is reversed. This projector is delivering perfect stereo, at least to my eyes at 640 X 480 @ 60HZ up to 1024 X 768 @ 85HZ with no color issues,no loss of sync, and no image cropping. I have watched several 3d films and played a few games on it both for enjoyment and in the last couple of days I reviewed both media critically to see if I could see any of the color issues or any ghosting and I can't see any. Actually there is a DepthQ projector on Ebay for $2500 and I was trying to talk myself into getting it, I just couldn't think of any way the 3d could be better than on my NEC. Keep in mind this is new to me and I am far from a trained eye in these matters, I just thought I would throw this up in case anyone was looking for a good projector for 3d, these are discontinued by NEC so they can be had for around $800. David | ||
| Peter Wimmer (Peter_wimmer) New member Username: Peter_wimmer Post Number: 11 Registered: 5-2006 Rating: N/A |
There is one strong reason why the DepthQ performs far better than any 85 Hz projector, at least for movies: Pageflipped playback of PAL content requires a refresh rate of 100 Hz so that each left/right frame is shown twice. Else, playback is not smooth. For NTSC, 120 Hz are required. Actually, the problems with 85 Hz projection are not obvious when playing 3D-DVDs because most discs are encoded in NTSC format and use an ugly pulldown to convert 24 fps to 30 fps, which causes jerky playback anyway. But if you have ever played a PAL 3D-DVD (e.g. the PAL edition of Haunted Castle) or your own content recorded with two DV/HDV cameras, you'll be able to see the difference. | ||
| Joe Warwick (Jwarwick) New member Username: Jwarwick Post Number: 1 Registered: 1-2007 Rating: N/A |
I have got the Benq PB8230 UXGA, 2500 lumens projector. Ive only got stereo working in the following way: ED Wireless glasses, 1280x1024, 60 hz, general timing formula (NVidia 7600gt). For which I am happy to play for hours with no headaches or eyestrain. When I try this at any other resolution, the 3d image drifts in and out of sync every few seconds. If I try higher refresh rates such as 1024x768 at 84hz, the glasses are totally out of sync with both the frames and the colorwheel, looks very horribly jerky, I assume its because its a 6 segment color wheel and therefore not evenly divisible by 2 at 84 hz. Is that right? The PB 6230 worked well at 85hz I read, would have thought the 8230 would be at least as good... the difference is the color wheel right? I havent tried page flipping because the jerkyness is not even but 1/3 or 2/3 out of phase, bleugh. Oh well. at least it works at 60 hz, which is completely fine, I only see some flickering if I look for it. | ||
| Peter Žiak (Hornet) Member Username: Hornet Post Number: 59 Registered: 4-2006 Rating: N/A |
Hi, use PB 6240 (2 pcs :-) in 1024x768 85 (84 Hz) problemless with e-dimensional shutterglasses, use the ED activator (ed.exe) for activation of glasses (heve 6600 GT and 77.77 drivers).ED activator can by problematic with new drivers for 7600 GT. With ED activator the sporadic desyncr.are in my setup no present.I think the resolution must by used 1024x768 - this is native res of this projector! And is necessary adjusting of V-sync (disabling), and AA (low framrates). These problems are in movie projection or software-games? Is this with stereoplayer? | ||
| Geir Bakke (Andemat) New member Username: Andemat Post Number: 1 Registered: 1-2007 Rating: N/A |
How about the Mitsubishi HC5000 1080 projector? Will it work with pageflipped 3d? It says: h-sync: 15-100kHz v-sync: 50-120Hz dot clock: 170MHz http://www.aboutprojectors.com/Mitsubishi-HC5000-projector.html | ||
| Peter Žiak (Hornet) Member Username: Hornet Post Number: 60 Registered: 4-2006 Rating: N/A |
Hi, this is LCD projector, the V-sync 120 Hz is only highest accepted freqency, the real refresh freqency is max cca 60 Hz, for pageflipped stereo is this very low - picture had flicker. In this time only DLP projectors are compatible with pageflipped active stereo. | ||
| Geir Bakke (Andemat) New member Username: Andemat Post Number: 2 Registered: 1-2007 Rating: N/A |
How do you know lcd is max 60hz? Maybe this one have a new type of lcd. Or is 60hz a physical limitation that lcd will never exceed? | ||
| Peter Žiak (Hornet) Intermediate Member Username: Hornet Post Number: 61 Registered: 4-2006 Rating: N/A |
I think yes. have no infos about "new" LCD projectors. For home cinema 60 Hz (NTSC or 50Hz PAL) is LCD enough refresh. Have tested 2 LCD projectors, all have no more than 62 hz. Sorry. DLP projectors are no so problematic, only types with big HDpanels are no tested for pageflipping at higher refresh.(This is too problem of signal processing speed and bandwidth of DLP chip and electronic of projector. Generally, manufacturers of consumer projectors are no stimulated and interested in higher refresh technology. In 10 years this were changed (after shock after 3d movie Avatar (J.Cameron cca 2009) and building of home HD 3D cinemas.) | ||
| Joe Warwick (Jwarwick) New member Username: Jwarwick Post Number: 2 Registered: 1-2007 Rating: N/A |
Hey Peter, The problems with the PB 8230 are with the nvidia test application, stereoplayer and games. Tonight I will try the setup like you have (77.77 + 6600GT + ED.exe), previously I could not get stereo to work properly at all with a 6600GT on the projector and using latest Nvidia drivers, but I wasnt using ed.exe. I never used the ED Activator because it locked up the pc too much and wasnt necessary to play games on the CRT in 3d at all. Whats the point of using ED.exe? I thought it was unnecessary if you used the NVidia stereo3d driver? Thanks for your help. | ||
| Joe Warwick (Jwarwick) New member Username: Jwarwick Post Number: 3 Registered: 1-2007 Rating: N/A |
Ah I see the refresh rate problem: 8230: H-Sync Range: 15.9 - 60.0kHz V-Sync Range: 20 - 100Hz 6240: H-Sync Range: 20.0 - 88.0kHz V-Sync Range: 20 - 85Hz Dang, Ill have to trade up to the 8240 if I want higher refresh. | ||
| Peter Žiak (Hornet) Intermediate Member Username: Hornet Post Number: 62 Registered: 4-2006 Rating: N/A |
Hi, V sync range of 8230 is good, I think the same as 6240 (100 hz is only in MAC mode, had 6240 too in manual 20-100 hz) Important is use of 1024x768 res, ED activator remove the sporadic random "flashes" when the FPS drops, with ED is simple the R/L reversing, is no necessary hardware reversing of glasses. I have with my setup practically no problems, works well, of course. I use setup with 2 6240 and Matrox Dual head2Go adapter (super wide projection for games and simulators). | ||
| Andrew Woods (Andrew_woods) New member Username: Andrew_woods Post Number: 9 Registered: 4-2006 Rating: |
I presented a detailed technical paper on this topic at the 2007 Stereoscopic Displays and Applications conference in San Jose, California last month. www.stereoscopic.org/2007 The paper describes a survey of 45 consumer DLP projectors to establish whether they were compatible with time-sequential 3D - in various video modes and connection methods. The paper also discusses the reasons that some projectors are not time-sequential 3D compatible e.g. deinterlacing problems, synchronisation problems, etc. The paper contains a compatibility listing for the 45 DLP projectors tested - including listing 15 projectors that were 85Hz time-sequential 3D compatible. This paper is more detailed than the paper previously referenced on this thread that was presented in August in South Korea. The full reference for the paper is: Woods, A.J., Rourke, T., (2007) "The compatibility of consumer DLP projectors with time-sequential stereoscopic 3D visualisation", presented at Stereoscopic Displays and Applications XVIII, published in Stereoscopic Displays and Virtual Reality Systems XIV, Proceedings of SPIE Vol. 6490, San Jose, California, 29-31 January 2007. The full paper is available for download here: www.cmst.curtin.edu.au/publicat/2007-05.pdf | ||
| Uncle Bob (Unclebob) New member Username: Unclebob Post Number: 1 Registered: 3-2007 Rating: N/A |
Hi all not been around for a while. Just invested in a Benq MP720P to replace my X1. Will give a report on how it works for 3d later. Peter Žiak (Hornet) I see from your posts above that you use 84 or 86 hz. How do you manage that? All the best Unclebob | ||
| Peter Žiak (Hornet) Intermediate Member Username: Hornet Post Number: 69 Registered: 4-2006 Rating: N/A |
Hi I use 85 hz refresh and this is good, have tested 86 Hz (custom refresh in drivers) ant this +-works (PJ displayed 86 Hz). I think 85 Hz is acurate refresh for this PJ. Use this problemless with Matrox DualHead2Go adapter (2x1024x768 = 2048x768 resolution and second PJ) and this is bombastic setup for flight simulation (85Hz 3D stereo compatible), | ||
| Uncle Bob (Unclebob) New member Username: Unclebob Post Number: 2 Registered: 3-2007 Rating: N/A |
Thanks Peter Unclebob | ||
| Uncle Bob (Unclebob) New member Username: Unclebob Post Number: 3 Registered: 3-2007 Rating: N/A |
The Benq MP720P is bloody brillient. Very bright image. Set to 1024 at 85Hz. Have it set on economy mode and still bright. Helps to be in the cellar though (no light noise). Simlpy tried the 'beta' 93.71 stereo drivers and the nvidia test image and some JPS's. No cross talk, no ghosting. A little flicker on the white spaces but not bothersome. Excellent image quality. Have not delved any further but can imagine playing with the projector controls will deliver even better results. Com'on STALKER!!! A happy Unclebob. | ||
| Thomas Schäfer (Speedbear) New member Username: Speedbear Post Number: 2 Registered: 4-2007 Rating: N/A |
@Uncle Bob: Works this only with games or with 3D-DVD`s (Field Sequential 3D) too ? Thomas | ||
| Andrew Woods (Andrew_woods) New member Username: Andrew_woods Post Number: 11 Registered: 4-2006 Rating: N/A |
Thomas Schäfer asked whether the MP720P would work with Field-Sequential 3D DVDs. I haven't tested the MP720P myself, however, I can offer the following. Across the 45 DLP projectors that we tested, only 4 would correctly display in 3D the composite or SVideo signal played from a field-sequential 3D DVD. This is because most DLP projectors use a deinterlacing algorithm which mixes alternate fields (not good for 3D). My strong suspicion is that the MP720P will fit in this category. There is however usually one way around this problem, and therefore make the projector be able to display the field-sequential 3D DVD directly. Play the 3D DVD on a progressive playback DVD player (such as the Panasonic DVDS1), connect the player and projector using component cables/connection, and whalla the projector will display the 3D signal correctly. But note: - not all progressive DVD players will convert the interlaced video signal to progressive in a friendly way. We've only found a few Panasonic DVD players that will do it e.g. the Panasonic DVDS1. - this method will flicker at 60Hz (30Hz per eye) - Computer playback of the 3D DVD will allow operation at up to 85Hz (less flicker on suitable projectors) but motion artefacts may be present. More info here on my new 3D projector list: http://www.3d.curtin.edu.au/3dmovies/projectors.html BTW: readers of this forum may be interested in an extensive article just published on stereoscopic gaming using DLP projectors: http://www.tomshardware.com/2007/04/10/wall_sized_3d_displays/index.html | ||
| Kevin Scharnhorst (Kscharnhorst) New member Username: Kscharnhorst Post Number: 1 Registered: 4-2007 Rating: N/A |
I'm curious if the Panasonic AX100U is compatible for 3D? It's a LCD and not DLP, but it fits the minimum specs for brightness, refresh rate, resolution, and contrast ratio. | ||
| Kevin Scharnhorst (Kscharnhorst) New member Username: Kscharnhorst Post Number: 2 Registered: 4-2007 Rating: N/A |
I'm curious if the Panasonic AX100U is compatible for 3D? It's a LCD and not DLP, but it fits the minimum specs for brightness, refresh rate, resolution, and contrast ratio. | ||
| Andrew Woods (Andrew_woods) New member Username: Andrew_woods Post Number: 17 Registered: 4-2006 Rating: N/A |
LCD projectors are NOT compatible with time-sequential 3D video. An explanation of why is here: http://www.cmst.curtin.edu.au/publicat/2006-30.pdf "Compatibility of LCD Monitors with Frame-Sequential Stereoscopic 3D Visualisation" | ||
| Jesus A. Garrido Antonio (Jagarridoan) New member Username: Jagarridoan Post Number: 1 Registered: 4-2007 Rating: N/A |
Do you think the 3d will work with a VGA- KVM extensor via UTP cat 5, like this??: http://www.gefen.com/kvm/product.jsp?prod_id=1463 I have the computer 20 meter far away from the projector and I don't know if it could better to setup a long vga cable or use that kind of device. ( I have also a USB extensor for keyb-mouse-joystick). | ||
| yitzhak weissman (Itsikw) New member Username: Itsikw Post Number: 4 Registered: 9-2006 Rating: N/A |
The new Mitsubishi PK20 pocket projector works perfectly at 85Hz. Stable picture, no color distortions. Specs: Resolution: 800x600 Lumen output: 27 Delay: not measured The projector displays also 100Hz signal. The picture is geometrically stable, but there are colored transients. Not usable for viewing (unfortunately). | ||
| Andrew Woods (Andrew_woods) New member Username: Andrew_woods Post Number: 19 Registered: 4-2006 Rating: N/A |
Thanks Yitzhak. I've added this projector to my web list of 3D compatible projectors: http://www.3d.curtin.edu.au/3dmovies/projectors.html By any chance do you know what the colour cycle speed of this projector is? (Although it is an LED projector (and hence it doesn't use a colour wheel), it still uses the colour sequential technique to display a full colour image from a single DMD panel.) | ||
| yitzhak weissman (Itsikw) New member Username: Itsikw Post Number: 5 Registered: 9-2006 Rating: N/A |
Sorry, I did not have yet time to perform any measurements and tests on this projector. Therefore, I do not know what is the color cycle time, but I can clearly see the rainbow. I saw good 3D in pageflipping mode at 85Hz, so the delay cannot be too large. | ||
| Ku (Kudawg) New member Username: Kudawg Post Number: 1 Registered: 9-2006 Rating: N/A |
hey I have 3 NEC vt670 projectors, can't find my old revolators but plan on buying some ED glasses. Will these LCD projector work OK for 3d gaming at all? I've read about the DLP and LCD but are these newer projectors better with the LCD then before? | ||
| Ku (Kudawg) New member Username: Kudawg Post Number: 2 Registered: 9-2006 Rating: N/A |
Ok using ED glasses with my Nec vt670, didn't work but using the red/blue cheap things worked pretty good.. Would using two projectors and the red/blue glasses work any better getting a 3d image.. Ku | ||
| Andrew Woods (Andrew_woods) New member Username: Andrew_woods Post Number: 20 Registered: 4-2006 Rating: N/A |
Using two projectors provides NO advantage for anaglyph (red/blue) 3D. However, using two projectors (plus silver screen, polarisers, and polarised 3D glasses) you could do polarised 3D projection! What 3D video modes did you try with your NEC VT670's? Most of the NEC projectors we have tried have been able to do VGA 60Hz 3D (see: http://www.3d.curtin.edu.au/3dmovies/projectors.html ) - did you try that mode? | ||
| Oliver Staubi (Staubi) New member Username: Staubi Post Number: 3 Registered: 6-2007 Rating: N/A |
Hi Anonymous, i have a question. You write, that your infocus x1a works on 60Hz, 75Hz... How you can change it? I bougt this projector too, but i have problems to see a good 3d Picture. There are no problems with colors but most time i see ghost pictures. (i mean the right and the left pictures are not really seperated. Only sometimes. I think i have to change the frequenz. But how i can do. my DVD recorder is playing interlaced an my shutter glases and the sync box are also special for dlp projectors. It is better to play from a computer where a can change the frequenz? And when i take the computer, can i also take the momitor cable or only the composite or s-Video cabel? Thanks and sorry for the bad english. Oliver | ||
| Andrew Woods (Andrew_woods) Junior Member Username: Andrew_woods Post Number: 21 Registered: 4-2006 Rating: N/A |
Hello Oliver, The Infocus X1A will not accept field-sequential 3D Video successfully via the composite or SVideo ports. It mixes the left and right eye views and causes ghosting. To get field-sequential 3D DVDs to work on this projector it is necessary to either: 1. Play the 3D DVD using a Panasonic Progressive DVD player such as this one http://www.amazon.com/exec/obidos/ASIN/B000EOH1MM/3dmovies-20 and connect to the projector using the component connection (and the DVD player switched to progressive mode). Note that NOT all progressive DVD players are 3D compatible. or 2. play back from a PC using software such as Stereoscopic Player www.3dtv.at connected via the VGA connectors. The frequency of DVD cannot be changed just with a DVD player. It is fixed at either 60Hz or 50Hz - depending upon the particular DVD you have. The vertical video frequency of the PC is set in the control panel for the graphics card. The Infocus X1A projector cannot change the video display frequency. It just displays what it receives. More information is available on my website: www.3dmovielist.com/projectors.html Cheers, Andrew. | ||
| Oliver Staubi (Staubi) New member Username: Staubi Post Number: 4 Registered: 6-2007 Rating: N/A |
Thank you verry much Andrew, the Stereoscopic Player was a really good idear. Now its also playing on my computer. i will buy a vga cable and i hope it will also work on my projector too. Thanks, Oliver | ||
| Janosz Poha (Janosz) New member Username: Janosz Post Number: 4 Registered: 4-2007 Rating: N/A |
I just bought a sharp XR10X with ED glasses and it works, as stated on Andrew's list  , at 1024*768 @ 85hz. The only mishap on my road to home VR was that no game would page-flip...until I gathered information on this forum and on MTBS... I had to disconnect one of the cores of my X2 4600 to get nvidia drivers to work (msconfig > boot.ini > advanced > NUMPROC=1 / just deselect NUMPROC to get the second core back -don't panic, you can't select 2 to go back, but deselecting will do the trick!)Once single-proced, most games worked great! Thank you all!! | ||
| Andrew Woods (Andrew_woods) Junior Member Username: Andrew_woods Post Number: 22 Registered: 4-2006 Rating: N/A |
Thanks for the confirmation! | ||
| Yuri Buyskikh (Yurabbb) New member Username: Yurabbb Post Number: 6 Registered: 4-2007  Rating: N/A |
Hi! Someone knows if the Benq 830/831 could work in stereo at 85 Hz? FREE YOUR MIND !!! | ||
| Elber Junior (Erbipjr) New member Username: Erbipjr Post Number: 1 Registered: 7-2007 Rating: N/A |
My set up: Sharp XR-10X X3D PC system - Stereoscopic Player Very good stereo at 85 Hz, pageflipping. No color problems. Projector always in economic mode lamp. | ||
| Andrew Woods (Andrew_woods) Junior Member Username: Andrew_woods Post Number: 23 Registered: 4-2006 Rating: N/A |
Yuri asked if the Benq 830/831 could work in stereo at 85 Hz? I'm not aware of this projector being tested for 3D compatibility. Judging only by the specifications, the chances are not good.... 1. The native resolution of the SP830/831 is 1280x768. In our testing, only projectors with a native resolution of 1024x768 (or lower) were capable of 85Hz stereo. Higher resolution projectors could only do 60Hz stereo, if they could do it. 2. Of the 9 BenQ projectors that I have testing records for, only 44% could do time-sequential 3D. Details here: www.3dmovielist.com/projectors.html Therefore, my estimate is that there's a 0% chance that this projector will do 85Hz stereo, and a 44% chance that this projector will do 60Hz stereo. Clear as mud? ;-) If you do get to test one of these units, please let us know the results. | ||
| Steve Mace (Abydos) New member Username: Abydos Post Number: 1 Registered: 9-2007 Rating: N/A |
So setting an sxga+ (native 1400x1050) projector to a 1024 x 768 setting would still fail at 85+? If this is true I may just wait a while before buying a projector.. 1024x768 just isn't acceptable for me for certain apllications. I don't suppose anybody has heard of the resolution/refresh problem being circumvented in upcoming projectors have they? Living in hope ^^ - Abydos (Message edited by abydos on October 03, 2007) | ||
| Peter Žiak (Hornet) Intermediate Member Username: Hornet Post Number: 77 Registered: 4-2006 Rating: N/A |
Hello Andrew In your list is little error present: The Benq MP 720 is XGA 1024x768 (the MP 721 is too 3D compatible XGA 85 Hz) | ||
| Andrew Woods (Andrew_woods) Junior Member Username: Andrew_woods Post Number: 24 Registered: 4-2006 Rating: |
Steve Mace asked: > So setting an sxga+ (native 1400x1050) projector to a 1024 x 768 setting would still fail at 85+? Ordinarily, if the projector won't display time-sequential 3D in its native resolution, it also won't work at a lower resolution. There are some "professional" SXGA+ projectors that can do 120Hz stereo. One example is the Christie Mirage S+3K http://www.christiedigital.com/AMEN/Products/MirageS3K.htm This projector can do 115Hz stereo at its native SXGA+ resolution, and 120Hz stereo at SXGA resolution. We used a projector similar to this at the SD&A 2007 conference. www.stereoscopic.org/2007 This is the only projector that I've seen that can do a higher stereo refresh rate at a lower input resolution. I certainly haven't seen this capability on a "consumer" projector. (and thanks to Peter for the error correction. I'll fix it shortly). Cheers, Andrew. | ||
| Lars Ahnland (Stereoviewer) Junior Member Username: Stereoviewer Post Number: 25 Registered: 4-2006 Rating: N/A |
What about small projectors like Optoma HD70 or Dell™ 3400MP? (Message edited by stereoviewer on October 23, 2007) | ||
| Lars Ahnland (Stereoviewer) Junior Member Username: Stereoviewer Post Number: 26 Registered: 4-2006 Rating: N/A |
Peter Ziak, you say the MP 721 is too 3D compatible (XGA 85 Hz). Did you test it? How do you get it to work with ED Glasses without a VGA-conection? (Message edited by stereoviewer on October 28, 2007) | ||
| Peter Žiak (Hornet) Intermediate Member Username: Hornet Post Number: 79 Registered: 4-2006 Rating: N/A |
Hello see the specs. Input Terminals PC Analog RGB: D-sub 15 pin x 1(shared) DVI-I(Shared with wireless module) A/V Component Video: D-sub 15 pin x 1(shared) S-Video: Mini Din 4 pin x 1 Composite Video: RCA x 1 Audio PC audio: Stereo mini jack x 1(shared) Video L/R audio: Stereo mini jack x 1(shared) Output Terminals Analog RGB: D-sub 15 pin x 1 See here (picture) http://interactive-av.co.uk/pdf/benq-mp721.pdfVGA input is onboard | ||
| Lars Ahnland (Stereoviewer) Junior Member Username: Stereoviewer Post Number: 27 Registered: 4-2006 Rating: N/A |
What do you call the VGA connection? | ||
| Peter Žiak (Hornet) Intermediate Member Username: Hornet Post Number: 80 Registered: 4-2006 Rating: N/A |
Analog RGB D-sub 15 pin = VGA input, 3D stereo is possible on consumer projectors with e-dim glasses only per VGA inpuut (and dongle use).The dongle can by mounted ond sub D output of projector - the DDC pin with signal to controlling the dongle is active. PS:Yesterday had my 3D friend used this PJ for 3D stereo per VGA (D sub 15 pin) input. (Message edited by Hornet on October 29, 2007) (Message edited by Hornet on October 29, 2007) | ||
| Lars Ahnland (Stereoviewer) Junior Member Username: Stereoviewer Post Number: 28 Registered: 4-2006 Rating: N/A |
Thnaks a lot. Very interesting. | ||
| s tanak (Stant) New member Username: Stant Post Number: 1 Registered: 11-2007 Rating: N/A |
Does anyone knows new BenQ MP771 http://benq.com/products/Projector/?product=1239 works good with 3D? Native 1024x768 support 1280x1024 DLP 3000 ANSI 85Hz The Short Throw spec is very attractive for me. I have tested TAXAN U6-232 recently and it works good 3D at 1024x768 85Hz but need a long distance to the screen. | ||
| Andrew Woods (Andrew_woods) Junior Member Username: Andrew_woods Post Number: 27 Registered: 4-2006 Rating: N/A |
Regarding the TAXAN U6-232, this seems to be the same as the Plus U6-232. Can anyone confirm? They certainly look the same from the following pictures... Taxan U6-232: http://www.ivojo.co.uk/taxan-u6-232.htm Plus U6-232: http://www.jtfbus.com/jtf/item.cfm?id=6284 | ||
| s tanak (Stant) New member Username: Stant Post Number: 2 Registered: 11-2007 Rating: N/A |
I just confirmed by the company. Plus brand for a projector was taken over by company of Taxan but U6-232 is only available by Taxan brand. I was aware of the BenQ MP771 has no zoom function.  (Message edited by stant on November 06, 2007) | ||
| Peter Žiak (Hornet) Advanced Member Username: Hornet Post Number: 83 Registered: 4-2006 Rating: N/A |
Hi all, Are performed tests of new DLP full HD projectors for the max possible refresh? It is possible usage of RGBHV input of projectors as VGA input? Have idea: Blu Ray player + HDfury HDMI to VGA Adapter Cable + VGA pass through dongle +shutterglasses + RGBHV input of full HD DLP PJ = HD "pseudostereo". Have tested combination of DVD player vith VGA output+pass through VGA dongle +shuttergl + DLP XGA PJ +Planet Earth DVD = amazing home cinema! | ||
| Andrew Woods (Andrew_woods) Junior Member Username: Andrew_woods Post Number: 28 Registered: 4-2006 Rating: N/A |
Firstly, I'm not sure I correctly understand the questions, but here goes... > Are performed tests of new DLP full HD > projectors for the max possible refresh? I don't have any test results for 3D compatibility of consumer grade DLP full-HD projectors. However, I suspect that the maximum 3D compatible refresh rate will be 60Hz. Christie have released a new 120Hz 3D compatible full-HD projector - the Matrix HD4. It is fairly unique in that it will display 120Hz 3D from a 60Hz source - it internally increases the display frequency from 60Hz input to 120Hz display. However, this is a high-end three-chip DLP projector which will be out of the reach of most consumers. > It is possible usage of RGBHV input of > projectors as VGA input? RGBHV is electrically the same as VGA - it is just that RGBHV uses 5 separate BNC connectors and VGA uses a 15-pin High-Density D connector. A cable such as this one converts between VGA and RGBHV: http://www.altronics.com.au/index.asp?area=item&id=P1769 > Have idea: Blu Ray player + HDfury HDMI to > VGA Adapter Cable + VGA pass through dongle > +shutterglasses + RGBHV input of full HD DLP > PJ = HD "pseudostereo". Firstly, using Blu-Ray as a source will limit the display frequency to 60Hz. Secondly, I am not aware of any field-sequential 3D Blu-Ray or HD-DVD discs available yet. Thirdly, playing a 2D Blu-Ray disc in this way will not allow it to be seen in 3D. Fourthly, "pseudo-stereo" means something else. It means that correct 3D images are being displayed on screen, but you're viewing with the wrong eye polarity (i.e. left image to right eye, and vice versa, instead of left image to left eye). > Have tested combination of DVD player vith > VGA output+pass through VGA dongle +shuttergl > + DLP XGA PJ +Planet Earth DVD = amazing > home cinema! Viewing a 2D DVD in this way will NOT produce correct 3D viewing. Apologies if I've misunderstood the questions. (Message edited by Andrew_Woods on November 12, 2007) | ||
| Peter Žiak (Hornet) Advanced Member Username: Hornet Post Number: 84 Registered: 4-2006 Rating: N/A |
Hi thx for answer. I use DVD player, shutterglasses with VGA pass thr.dongle . It is not ideal = it is no true 3D - of course. Only the pulfrich phenomena and brain antialiasing with only minimally flicker (of course) resulted in more more better perfomance than simple 2D. The new movies are all with dynamic camera shifts and cca 70% of time is 3D efect little or more present. For my this was shock, becose the result is very good (non comparable to normal regular 3D stereo) only subj.very very good. The advantage - simple, cheap, and no special 3D DVD are needed. BBC Planet Eart in this -awesome. | ||
| Lawrence (Rx78tam) New member Username: Rx78tam Post Number: 1 Registered: 11-2007 Rating: N/A |
Hi Anyone tried Optoma EP910? Native 1400x1050@60 1024x768@85 | ||
| Fernando Echevarrieta (Echeva) New member Username: Echeva Post Number: 1 Registered: 11-2007 Rating: N/A |
Optoma D309 =========== 640x480 60Hz : OK Any other: KO 800x600 (native) 60Hz : OK Any Other: KO Any other res: KO DELL 4100MP =========== 640x480 60 Hz : OK Any Other: KO Any other res: KO}} | ||
| Fernando Echevarrieta (Echeva) New member Username: Echeva Post Number: 2 Registered: 11-2007 Rating: N/A |
QUESTION ABOUT BENQ AND GOLDEN RATIO COLOR WHEEL ================================================ Hi! I've read this post, and also Andrew's and Tegan's study. I was thinking of buying a BenQ MP721 projector, though it's hard to find now. MP721c, cheaper, is very easy to find, althoug. As far as I have read, this proyector has a "Golden Ratio Color Wheel", with 5 segments. 1. I understood from this thread, all MPs have 5 segments wheel? Can you confirm MP720 and MP721 do also have this wheel? 2. I have read Hornet and Unclebob said bias for MP720 was not a problem, so should I expect the same results we get with 720 or 721 if I buy 721c? 3. Do you know if there is any significant difference between MP721 and MP721c apart from lumens? It is strange MP721 is no longer sold, while MP721c is easyly found, and cheaper, but 300 lumens less bright. Thanx in advance! Regards! | ||
| Peter Žiak (Hornet) Advanced Member Username: Hornet Post Number: 86 Registered: 4-2006 Rating: N/A |
Hi I think, the simpliest way is self testing (in store or when anybody purchased this type of PJ). This is my method, very slow :-( | ||
| Fernando Echevarrieta (Echeva) New member Username: Echeva Post Number: 3 Registered: 11-2007 Rating: N/A |
SHARP XR-10X? Hi Thanx Hornet, yeah! it's too slow. Up to now, I was able to try just the two models I commented before :-( What about Sharp XR-10X owners? Erbipj? Janosz? You say "good stereo" and "no color problems" but... it means "you can notice slight color difference between eyes and your brain's white balance compensates it when using both eyes"? or you mean "there is no color difference at all"? What about ghosting, as for Andrew's and Tegan's paper, there may theoretically be about 2% ghosting due to tie offset at 85 Hz? Thanx in advance. | ||
| konstantinos (Costas3d) New member Username: Costas3d Post Number: 2 Registered: 12-2006 Rating: N/A |
Hi! Someone knows if the Casio XJ-360 could work good in stereo at 800x600 85 Hz? | ||
| Andrew Woods (Andrew_woods) Junior Member Username: Andrew_woods Post Number: 30 Registered: 4-2006 Rating: N/A |
The Casio XJ-360 is 85Hz 3D compatible at it's native resolution of 1024x768. I expect this would also mean that it will run 85Hz 3D at 800x600 but we didn't test this. Testing results for the Casio XJ-360 are listed on my 3D projector compatibility list here: www.3dmovielist.com/projectors.html | ||
| Chris Jarram (Chrisjarram) New member Username: Chrisjarram Post Number: 1 Registered: 11-2007 Rating: |
TRIPLEHEAD2GO 3 * 1024/768 85HZ FULLY FUNCTIONAL - TRIPLE PROJECTOR!! For those interested, I've successfully put together the following rig and the results are abolutely fantastic:- The exact config is: Q6600 (no multicore problems yet) EVGA 680i Sli M/B BFG 7900 GTX OC g/c Matrox th2g + MET (Mode expander tool, providing 85hz support) 3 * Benq MP720p XGA 85hz projectors ED Wireless glasses Nvidia Stereo drivers 162.50 w/ forceware 162.50 5.1 Dolby digital surround Other accessories to be used but still awaiting test: TrackIR:4, MIcrosoft Sidewinder Flight Stick and Force Feedback wheel. All runs absolutely fine - test application, usual games and all at 3072 * 768 85hz. I have an XFX 8800 ultra extreme here too which cost a fortune and was a little PO'd when I had to downgrade to the 7900 gtx to get the 3d working! Roll on those 8800 and Vista drivers but stuck with XP for now (which isn't really a big deal . Drop me an email if any questions... Chris | ||
| Peter Žiak (Hornet) Advanced Member Username: Hornet Post Number: 87 Registered: 4-2006 Rating: N/A |
Cg ! (use only 2 PJ and Matrox Dualhead2Go) My Condor soaring simulator works only max 2048x768. Any pics? Trackir is good accesory for this setup. | ||
| Chris Jarram (Chrisjarram) New member Username: Chrisjarram Post Number: 2 Registered: 11-2007 Rating: N/A |
Hi Hornet, Pics will be up soon, I actually borrowed 2 of the projectors which were returned this evening but I've purchased the same 2 which will be delivered next week. Gonna suspend 3 homemade hi-gain screens in a surround configuration (similar to my lcd monitors on TH2G) and have a shelf behind the sofa with the projectors on. I've invested a lot of time and money in the rig as a whole so want to get some decent pics to see if they can be published. Watch this space, is taking a long time to set up as you can prob imagine but will be worth the effort now I've proved it all works I have Condor but not tried it yet, will let you know how I get on! Got _very_ slight ghosting but tbh they are very good projectors for this purpose - do you have any tips on how this could be reduced? (other than knocking down the contrast and up the brightness), I'm guessing there is not a lot that can be done about it | ||
| Chris Jarram (Chrisjarram) New member Username: Chrisjarram Post Number: 3 Registered: 11-2007 Rating: N/A |
Hey Stant - I'm going to try the MP771 as it looks perfect for this application and would make my triple beamer rig sooo much better! Have you had any feedback about this, do you know anyone who is stocking it yet? (still havent been able to locate one). | ||
| Peter Žiak (Hornet) Advanced Member Username: Hornet Post Number: 89 Registered: 4-2006 Rating: N/A |
This is good type - the wide field projection is ideal. Have searched - main problem is the higher price (have seen 1700 USD :-(). From 3d stereo point of view, hope is as other XGA Benq PJ good. 3x771, Matrox Triple head, e-dim glasses and Trackir = ideal 3D stereo sim and gaming setup. | ||
| Chris Jarram (Chrisjarram) New member Username: Chrisjarram Post Number: 4 Registered: 11-2007 Rating: N/A |
Yep, its not cheap but sadly might be the only realistic way to get the best setup - would basically result in 3 * 80" displays which can be sat right in front of though which would def be ideal. Problem is they arent due to ship for another couple of weeks and I'm sure they'd be quite a lot cheaper a year or so down the road I'd def be pretty broke if going for this option and dont think my girlfriend would be happy! I've also now added Buttkicker gamer and a MS sidewinder FF 2 usb which are on order - if anyone has any other suggestions on what can make the whole thing more immersive (without going for a motion platform) I'd be very grateful to hear! btw anyone know if anywhere is stocking the Belkin n52te yet? | ||
| Alain DE COL (3daddicted) New member Username: 3daddicted Post Number: 1 Registered: 12-2007 Rating: N/A |
Hello Chris (Jarram), Which version of TH2G do you use? Is it analog or digital version? If analog (that seems working well on my DualHead2Go), do you know if the digital version works too for 3D? Thanks! | ||
| Chris Jarram (Chrisjarram) New member Username: Chrisjarram Post Number: 5 Registered: 11-2007 Rating: N/A |
Is analog, as far as I know the mode expander tool is only for this unit but don't know anything about the digital version I'm afraid | ||
| Chris F (Chrisdfw) New member Username: Chrisdfw Post Number: 9 Registered: 4-2006 Rating: N/A |
If you are asking about more immersion you may want to look at Ivibe.com I have not tried it due to how they haven't come out with new games support but it is a chair cushion that simulates the feeling of g-forces. | ||
| Chris Jarram (Chrisjarram) New member Username: Chrisjarram Post Number: 6 Registered: 11-2007 Rating: N/A |
What a coincidence, I actually had an ivibe delivered from Craig this very day which I am going to test out in about an hour! Its primarily going to be used for rFactor and GPR2, its the best device on the market for its money - I'm going to dissasemble it and mount the tactile transducers in a Sparco race seat which will be sat in a Frex simconmotion. A buttkicker device will then be used to proide additional tactile feedback through the Logitech G25 FFB wheel and pedals - can't wait! Received my 3D-20 IR emmitter today also (www.3dflightsim.com), absolutely fantastic bit of kit - very, very well made, excellent customer service from Alan and flawless results, you can wonder around the room as you please and the glasses dont miss a beat. SO much better than the POS dongle you get with the eDimensional's. Pictures will follow soon. | ||
| Adam Bettencourt (Adam) New member Username: Adam Post Number: 1 Registered: 1-2008 Rating: N/A |
Has anyone had any success using a 1400x1050 res. projector? I am currently looking at the Dell 5100mp and the Optoma EP910. they both state a 120hz refresh, but I was hoping someone had given it a try. We are trying to set up a 3 wall immersive enviroment and I am trying to do it with out having to use 2 projectors per screen, because of the difficulty in lining up the images. Also, as a side note, I will hopefully be testing a Benq721c next week. It is rated as 1024x768 and 85hz. Some people have talked about this unit previously, but I don't think anyone has tried it. If you have any suggestions for this project in geneneral please let me know. | ||
| Peter Žiak (Hornet) Advanced Member Username: Hornet Post Number: 95 Registered: 4-2006 Rating: N/A |
Hi sipliest way-one PC rendering in 3072x768 res at 85 Hz, Triple Head 2Go, active projection with 3 XGA Benq (721 normal are positive tested the "c" ?... No so complicated.... See www.3dflightsim.com | ||
| Adam Bettencourt (Adam) New member Username: Adam Post Number: 2 Registered: 1-2008 Rating: N/A |
Thanks for the reply. I didn't see the the projectors I was looking for, but I'll keep looking. I'll post my results with m BenQ 721c. | ||
| Lawrence (Rx78tam) New member Username: Rx78tam Post Number: 3 Registered: 11-2007 Rating: N/A |
Hi Adam, Optoma EP910 doesn't work with pageflipped 3d | ||
| shonnan wibrow (Shonofear) New member Username: Shonofear Post Number: 1 Registered: 12-2007 Rating: N/A |
G'day, I'm really keen to get on board with a DLP like every 1 else. so I found a few that weren't on Andrew Woods list that I was wondering if any 1 had experiences with them with page flipped 3D.... Firstly a few questions. Does it matter if its 4x3 aspect ratio by default or 16x9. Cause some are 4x3 but can also do 16x9, and some are just 16x9 and i guess can do 4x3 with black borders....? Whats the best for 3D Stereo? well the first DLP is a Toshiba_DPD-TDP-T100U http://www.projectorcentral.com/Toshiba_DPD-TDP-T100U.htm it actually says it can do H-Sync Range: 15.0 - 120.0kHz V-Sync Range: 50 - 150Hz Display: Type: 1.4 cm DLP (1) Color Wheel Segs: ** Color Wheel Speed: ** Native: 1024x768 Pixels Maximum: 1600x1200 Pixels Aspect Ratio: 4:3 (XGA) that comes to my other question.... are the 1.8cm DLP colour wheel much better than the 1.4cm like the Toshiba 1? and heres the other DLP that i wanted to c if any 1 had working. http://www.projectorcentral.com/BenQ-SP830.htm http://www.projectorcentral.com/NEC-LT180.htm http://www.projectorcentral.com/InFocus-LP70.htm thats all for now, But I think I will wait for Nvidia's Release of the new STEREO drivers and go from there. Cheers fellas, Love ya work ;) Shono | ||
| Chris Jarram (Chrisjarram) New member Username: Chrisjarram Post Number: 7 Registered: 11-2007 Rating: N/A |
Hi Shono, I wouldnt bother with the LT-180 or LP70, its not really worth using anything less than around 2500 lumens due to the reduced brightness (which is essentially halved) when using shutter glasses. I have not used the SP830, but I'm having my first BenQ MP771 delivered tommorow and will post my results | ||
| John Hancock (Toobs1234) New member Username: Toobs1234 Post Number: 1 Registered: 1-2008 Rating: N/A |
Hi Chris, any luck testing the MP771 yet? I'm really hoping to use it as well, but it's not out yet in Switzerland. regards, John | ||
| Chris Jarram (Chrisjarram) New member Username: Chrisjarram Post Number: 8 Registered: 11-2007 Rating: N/A |
getting it delivered and tested tommorow, so will let you know! | ||
| shonnan wibrow (Shonofear) New member Username: Shonofear Post Number: 2 Registered: 12-2007 Rating: N/A |
r k, Cheers for heads up. I just notices that someone in this thread said that the NEC DOES WORK. QUOTE I just wanted to add the following to the projector list: Make: NEC Model: LT180 Resolution: 1024 X 768 85Hz operation: yes Sync delay: 1 frame delay stereo is reversed. This projector is delivering perfect stereo, at least to my eyes at 640 X 480 @ 60HZ up to 1024 X 768 @ 85HZ with no color issues,no loss of sync, and no image cropping. I have watched several 3d films and played a few games on it both for enjoyment and in the last couple of days I reviewed both media critically to see if I could see any of the color issues or any ghosting and I can't see any. Actually there is a DepthQ projector on Ebay for $2500 and I was trying to talk myself into getting it, I just couldn't think of any way the 3d could be better than on my NEC. Keep in mind this is new to me and I am far from a trained eye in these matters, I just thought I would throw this up in case anyone was looking for a good projector for 3d, these are discontinued by NEC so they can be had for around $800. David But just wondering wat this means... Sync delay: 1 frame delay stereo is reversed ? Is that wat Andrew Woods was talking about in his tests with the delay from the colour wheel....cant member now. Anyway, if I was to purchase a replacement lamp for this NEC, it would set me back $650- AU. Thats to much i think, way cheaper in the US but cant ship to Australia..... Anyways, Cheers again. Shono | ||
| Chris Jarram (Chrisjarram) New member Username: Chrisjarram Post Number: 9 Registered: 11-2007 Rating: N/A |
http://www.stereo3d.com/cgi-bin/discus/show.cgi?tpc=3177&post=23122#POST23122 Andrew (Woods) - fantastic article, many thanks for your research. I think the burning question is, out of any of the 85hz DLP's you tested, did ANY of them not suffer the colour problem (as the article states 'most', not 'all')? Just curious... | ||
| Chris Jarram (Chrisjarram) New member Username: Chrisjarram Post Number: 10 Registered: 11-2007 Rating: N/A |
"But just wondering wat this means... Sync delay: 1 frame delay stereo is reversed ? ". No, this is not related to the colour wheel, that is a separate issue - it means the page flipping is the wrong way round, i.e. to see stereo that is correct (not parralax inverted) you'd need to wear the glasses upside down, or alternatively (short of hacking away at the glasses) buy one of Alan's IR immiters or parralax correctors to fix this:- http://www.3dflightsim.com | ||
| Chris Jarram (Chrisjarram) New member Username: Chrisjarram Post Number: 11 Registered: 11-2007 Rating: N/A |
p.s. I was lucky enough to purchase the first 3d-20 of the line from www.3dflightsim.com and this unit is AWESOME. Highly recommended for the cost, you guys all need to buy one. It fills a large room with IR, and I have 6 pairs of eDimensional wireless glasses for large audience viewing. (NB it also fixes the fram delay problem indicated above). Fingers crossed combined with the MP771 this will be a perfect solution - more to follow. | ||
| Chris F (Chrisdfw) New member Username: Chrisdfw Post Number: 10 Registered: 4-2006 Rating: N/A |
If it makes a difference, none of my friends can see a color difference between eyes on my Sharp XR-10X @ 85hz 1024X768. | ||
| Chris Jarram (Chrisjarram) New member Username: Chrisjarram Post Number: 12 Registered: 11-2007 Rating: N/A |
Hmm, interesting - wonder if thats anything to do with its 3x colour wheel speed (as opposed to 2x for the projectors in the articel). | ||
| Chris F (Chrisdfw) New member Username: Chrisdfw Post Number: 11 Registered: 4-2006 Rating: N/A |
Yes, it does. The more times it spins per frame the more likely it will hit each color enough that it won't matter. The slower wheel might hit the red wheel 2 times in one eye and once in the other while the fast wheel doing 2 reds in one eye and 3 in the other makes it much less noticeable. | ||
| Chris Jarram (Chrisjarram) New member Username: Chrisjarram Post Number: 13 Registered: 11-2007 Rating: N/A |
Bad news guys: (Message edited by chrisjarram on January 04, 2008) | ||
| Chris Jarram (Chrisjarram) New member Username: Chrisjarram Post Number: 14 Registered: 11-2007 Rating: N/A |
btw if anyone has come across this problem with other projectors in the past and resolved it, can you please advise? Thanks, Chris | ||
| shonnan wibrow (Shonofear) New member Username: Shonofear Post Number: 3 Registered: 12-2007 Rating: N/A |
arrrgghhh NOOOOO!!! sorry for the bad news. I wonder why it dosent work compared to the other models.... is it a newer model compared to the other BenQ compatible 85hz models? Im starting to think im gonna have to get 1 from the list thats confirmed to work. All the best, Shono | ||
| s tanak (Stant) New member Username: Stant Post Number: 3 Registered: 11-2007 Rating: N/A |
Hi, Chrisjarram, Can you select pageflipping mode in Nvidia stereo menu after connect the projector? I had problem when I connect with latest model of Toshiba DLP projector, Windows recognise it with pop up sound like a USB connector and then automatically disable pageflipping mode. So I removed #12 pin from D-SUB 15 pin connector it seems MONITOR ID for Windows. Windows can not find the model name but just a CRT monitor. It works with pageflipping mode after remove #12 pin. I am looking forward to hear good news. | ||
| David (Trixfane) New member Username: Trixfane Post Number: 1 Registered: 1-2008 Rating: N/A |
Hi, Does anybody know if one these ultra short throw projectors can be used for 3d projection? BenQ MP771 3M DMS710 3M DMS800 NEC WT610 Toshiba ET20 Toshiba EW25 Toshiba EX20 SANYO LP-XL50 Hitachi CP-A100 Hitachi ED-A100 Second question, do you know other ultra short throw projector? Thank you. trixfane | ||
| Chris Jarram (Chrisjarram) New member Username: Chrisjarram Post Number: 15 Registered: 11-2007 Rating: N/A |
Hi Stant, Interesting - how do I select page flipping mode in the stereo driver? Does it not go into this mode for LC glasses anyway? As I say, 60hz works fine but others do not. Please could you advise with steps? many thanks for the response, it would be amazing if I could get this working! Cheers, Chris | ||
| Peter Žiak (Hornet) Advanced Member Username: Hornet Post Number: 96 Registered: 4-2006 Rating: N/A |
I think first step is creating of new resolution and refreshrate (1024x768, 85 Hz this is native resolution of this PJ) and refresh is max.possible value for this PJ. (creating in normal drivers).When you using LCD monitor refresh is normally only 60 Hz adjusted). For tests is ideal old CRT. Using of other higher resolutions above native is possible - only max.refresh is lower (75,or 60 hz). I think this is your problem... | ||
| John Hancock (Toobs1234) New member Username: Toobs1234 Post Number: 2 Registered: 1-2008 Rating: N/A |
Hi Chris, I read your original post regarding your troubles, but now your post just reads; "bad news guys (edited by ChrisJarram)". Perhaps you can describe the problem again. With any luck someone else has experienced the same problem and found a solution. thanks again, John | ||
| Chris Jarram (Chrisjarram) New member Username: Chrisjarram Post Number: 16 Registered: 11-2007 Rating: N/A |
Hi John, Yes - the problem was that instead of flipping smoothly as you'd expect the images 'stutter' on the MP771 at anything over 60hz. I havent yet tried the solutions described above but if anyone else has further suggestions they are of course welcome! Thanks | ||
| Gary Bilkus (Bilkusg) New member Username: Bilkusg Post Number: 2 Registered: 1-2008 Rating: N/A |
Hi, Apologies if this is a repeat, but I tried posting in what I now realise is an old discussion. I'm London based and keen to buy a DLP projector which can do good quality 85Hz or better stereo - I already have everything else I need, edimensional wireless glasses, decent PC with nvidia card, - but am having great difficulty finding any of the posted list of tested DLP projectors still available in the UK. Does anyone have any advice for current models which are known to work? I'm thinking of the Optoma EP 727 or EP 728 which appear to be near replacements for the EP719, but I can't find anywhere where I can try before I buy. | ||
| Chris Jarram (Chrisjarram) New member Username: Chrisjarram Post Number: 17 Registered: 11-2007 Rating: N/A |
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